Banking sector is one of the most important factors in development of economy. A strong and healthy banking sector is considered to be a prerequisite for sustainable economic growth. In this study, the aim is to apply Gray Relational Analysis (GRA) to measure and compare financial performances of 10 banks with common stock trading in Istanbul Stock Exchange (ISE) between the years of 2005-2011. Another aim of the study is to reduce the number of financial rates, which determine bank performance, and by doing so, identify which financial rate is more important in measuring performance. As a result of GRA method, "Akbank" was the first and "Yapı Kredi Bank" was the last in terms of financial performance. Another finding of the study was that a bank with high "Return on Assets" could also have a high financial performance.

Aim of this study is to apply Gray Relational Analysis (GRA) to measure and compare financial performances of participation banks between the years of 2012-2014. Another aim of the study is to reduce the number of financial rates, which determine participation bank performance, and by doing so, identify which financial rate is more important in performance measurement. As a result of GRA method, "Albaraka Turk" is the first and "Bank Asya" is the last in terms of financial performance. Another finding of the study is that a participation bank with high "Return on Assets" could also have a high financial performance.

ÖZIn the study, panel data analysis was used. According to the findings it is determined that Return on Equity and Return on Assets have a positive relationship with the total assets, however, leverage ratio have a negative relationship. In addition, a statistically insignificant relation was established between firm age, liquid ratio and profitability. Findings of the research are important for investors, researchers, executives of business.

The aim of this research is to test the relation between institutional ownership and firm value. To accomplish this aim, data from 104 firms listed in the BIST (i.e. Borsa Istanbul) industrial index between 2006 and 2018 have been used. Studies on the structure of ownership have problems with endogeneity. In order to avoid these problems, this study adopted Durbin-Wu-Hausman test with advanced econometric techniques, Ordinary Least Squares (i.e. OLS), and Two-Stage Least Squares (i.e. 2SLS). As a result of the simultaneous equation system improved in this study, a positive relation between institutional ownership as an endogenous variable, and firm value has been located. Besides, it has been found that institutional investors are more interested in the firms that have a higher market performance.

ÖZET

The aim of this research is to test the relation between institutional ownership and firm value. To accomplish this aim, data from 104 firms listed in the BIST (i.e. Borsa Istanbul) industrial index between 2006 and 2018 have been used. Studies on the structure of ownership have problems with endogeneity. In order to avoid these problems, this study adopted Durbin-Wu-Hausman test with advanced econometric techniques, Ordinary Least Squares (i.e. OLS), and Two-Stage Least Squares (i.e. 2SLS). As a result of the simultaneous equation system improved in this study, a positive relation between institutional ownership as an endogenous variable, and firm value has been located. Besides, it has been found that institutional investors are more interested in the firms that have a higher market performance.

This paper focuses on the optimal design of connecting rods and optimal design of a particle sensor system in diesel engines in order to save material, reduce costs and enhance quality. Optimization is very significant for developing better designs and means less material, lower costs and better conditions. Topology and topography optimization are new but likewise very important optimization approaches for the automotive industry. One of the aims of this study is to create an optimal design for connecting rod components and to use these components in diesel engines to comply with new emission regulations. An analysis of the connecting rods of an existing model was conducted using mathematical data obtained from numerical formulas in order to determine if the part was suitable for topology optimization. According to the results obtained from the topology optimization of the existing model, a new design was created. A comparison of the new design with the existing one showed that the mass of the model was reduced by 18 %, while all product expectations were me. Another purpose of the study is to provide an optimal design for a particle sensor system and utilize this system in automobiles to achieve the new emission values required by Euro-Norm 6c regulations. Within the scope of this optimization study, a specific particle measurement system foreseen for Renault 1.5 dCi engines was considered and designed optimally. According to the output of the topology and topography optimization methods, the particle sensor system was designed optimally, and the mass of the system was reduced by 26.7 %.

Bu çalışmanın amacı, tüketicilerin kişilik özellikleri ile finansal iyilik hali ve risk alma tutumu arasındaki ilişkiyi incelemektir. Ayrıca tüketicilerin demografik özelliklerine göre kişilik özellikleri ile finansal iyilik hali ve risk alma tutumunun farklılaşıp farklılaşmadığı da tespit edilmiştir. Bu amaçla araştırmada Selçuk Üniversitesi'nde öğrenim gören 200 öğrenci üzerinde bir anket uygulaması gerçekleştirilmiştir. Çalışmada kişilik özellikleri (Five Factor), finansal iyilik hali ve risk alma tutumu ölçekleri kullanılmıştır. Yapılan analizler sonucunda öğrencilerin cinsiyete göre risk alma tutumu ve finansal iyilik hali ortalamalarının istatistiksel olarak anlamlı bir şekilde farklılaştığı tespit edilmiştir. Başka bir ifade ile erkek öğrencilerin, kız öğrencilere göre risk alma tutumu algısı ve finansal iyilik hali algısı daha yüksektir. Buna karşın katılımcıların cinsiyetine göre beş faktör kişilik envanteri farklılaşmamaktadır. Ayrıca risk alma tutumu algısı açısından deneyime açıklık, uzlaşabilirlik, dışa dönüklük boyutları ile pozitif ve güçlü bir ilişki, buna karşın nevrotiklik ile negatif bir ilişki tespit edilmiştir. Finansal iyilik hali bakımından deneyime açıklık, uzlaşabilirlik, öz disiplin boyutları ile pozitif ve güçlü bir ilişki buna karşın nevrotiklik boyutu ile negatif ilişkiye ulaşılmıştır.